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Commands Reference, Volume 4
rpc.nispasswdd Daemon
Purpose
NIS+ password update daemon.
Syntax
/usr/sbin/rpc.nispasswdd [ [ -a Attempts ] [ -c Minutes ] [ -D ] [ -g ] [ -v
]
Description
The rpc.nispasswdd daemon is an ONC+ RPC service
that services password update requests from nispasswd
and yppasswd. It updates password entries in the NIS+ passwd table.
The rpc.nispasswdd daemon is normally started from
a system startup script after the NIS+ server, rpc.nisd has been started. rpc.nispasswdd determines whether it is running on a machine that is a master server
for one or more NIS+ directories. If it discovers that the host
is not a master server, then it promptly exits. It also determines if rpc.nisd is running in NIS(YP) compatibility mode
(the -Y flag and registers as yppasswdd for NIS(YP) clients as well.
The rpc.nispasswdd daemon will syslog all failed
password update attempts, which allows an administrator to determine whether
someone was trying to "crack" the passwords.
rpc.nispasswdd has to be run by a superuser.
Flags
-a Attempts |
Sets the maximum number of attempts allowed to authenticate the caller
within a password update request session. Failed attempts are syslogd and the request is cached by the daemon. After the maximum number
of allowed attempts the daemon severs the connection to the client. The default
value is set to 3. |
-c Minutes |
Sets the number of minutes a failed password update request should
be cached by the daemon. This is the time during which if the daemon receives
further password update requests for the same user and authentication of the
caller fails, then the daemon will simply not respond. The default value is
set to 30 minutes. |
-D |
Runs in debugging mode. |
-g |
Generates DES credential. By default the DES credential is not generated
for the user if they do not have one. By specifying this flag, if the user
does not have a credential, then one will be generated for them and stored
in the NIS+ cred table. |
-v |
Sets verbose mode. With this flag, the daemon sends a running narration
of what it is doing to the syslog daemon. This flag is useful for debugging
problems. |
Exit Status
0 |
Success |
1 |
An error has occurred. |
Files
/etc/init.d/rpc |
Initialization script for NIS+ |
Related Information
The passwd command, yppasswd command.
The rpc.nisd daemon, syslogd daemon.
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